US3162215A

US3162215A - Healds for a jet loom

Info

Publication number: US3162215A
Application number: US244786A
Authority: US
Inventors: Saito Hifumi
Original assignee: Individual
Current assignee: Individual
Priority date: 1962-12-14
Filing date: 1962-12-14
Publication date: 1964-12-22
Anticipated expiration: 1981-12-22

Description

Dec. 22, 1964 HIFUM] s rro 3,162,215

HEALDS FOR A JET LOOM Filed Dec. 14, 1962 INVENTOR.

lei MM 1 United States Patent Oil 3, 1 52,2 1 Patented Dec. 22, l 964 ice This invention relates to a heald for a jet loom wherein filling yarn is inserted and conveyed in the shed by a stream of fluid such as air or Water which is jetted across the loom from a nozzle provided on one side of the loom.

proposed that additional nozzles are provided on a lay beam of a jet loom, and air is jetted from the nozzles 1n the shed through the plane of warp yarns and join with said main stream of fluid to assist transportation of the filling yarn.

The main object of this invention is to provide a heald yarns.

The intention will be furtherdescribed with reference to the accompanying drawing, wherein loom parts are not shown as they may be any suitable usual construction and not part of the present invention.

In the accompanying drawing which illustrates a con struction of heald and functional parts thereof according to this invention,

FIG. 1 is a vertical sectional view of a heald and a lay beam;

FIG. 2 is a front view of the according to this invention;

FIG. 3 is a view similar to that of FIG. 2 of another embodiment of this invention; and

*IG. 4 is a plan view showing the relation between the right hand end of a heald additional air nozzles and Warp yarns when the nozzlesare in a position adjacent the warp yarns.

Referring to FIG. 1, 1 designates the plane of warp yarns arranged on a loom, and they make a shed 3 when they are vertically pulled up and down by healds 2 as usual. A nozzle 4 which jets a carrier fluid such as air or water is provided at one side of the loom, abutting against the shed to be made by the warp yarns at the moment when the lay beam is nearly at the most forward posi- The nozzle is connected with a high pressure flui source, and a flexible pipe, not shown, i employed if the nozzle is provided on the lay beam 5 as it reciprocates toward and away from the front of the loom. The incoming end of a filling yarn 6 which has been drawn out from a bobbin, not shown, in a definite length at the time immediately prior to each jet of fluid from the main nozzle 4 is drawn from the nozzle by a jet of carrier fluid.

An air pipe or pipes 7 'are mounted on a lay beam 5 and/or reed ca-p 5a, and are connected to an air pres sure source through a flexible pipe or pipes. Each of pipes 7 has one or more nozzles 8 directed in an oblique direction so as to jet an air stream along the direction of the main stream.

a The air streams jetted from the additional air nozzles join with the main stream in the shed, and make a long and strong jet suflicient to transport a filling yarn across the loom.

, In the pipes which connect the nozzles and their pressure source are provided valves, which control the opening of the pipes in connection with the rocking motion of the lay beam, whereby the fluids are jetted into the shed at the time when filling yarn is to be inserted therein. The incoming end of the filling yarn is quickly transported in the shed by the combined jet, and is beaten by the lay beam 5 at the beat-up yarn is tensioned.

In FIG. 2, 1i) and 10a denote respectively a pair of bars provided along the upper and lower sides of heald frame for holding the ends of heald wires, and an eye 12 is provided on each wire to guide a Warp yarn. A certain number of wires at the position corresponding to the additional air nozzles on the lay beam provides an eye ran position 9 when the filling at a little different level from the eyes 12 of other Wires, 1

and the wires having an eye at the same level tively fixed on the pair of bars 10 and ltla.

In operation of the loom, two healds are pulled in the opposite vertical direction to make a shed 3 in the warp yarns as usual, and the small number of eyes 10a position certain warp yarns at a different level from others so that a vertical clearance 13 is made in the plane of warp yarns as shown in FIGS. 1 and 4. The additional air nozzles are directed into these clearances as shown in FIG. 4 to facilitate jetting of additional air streams.

If there is only one additional air nozzle on the lay beam, all wires on each side of the position correspond ing to the air nozzles can be mounted on the heald frame so as to place their eyes at different levels, so that a single vertical clearance is formed at the border.

In an embodiment of the invention shown in FIG. 3, the eye of a number of Wires at the corresponding position to the adidtional air nozzles is elongated as at 14 with the ends of the elongated eyes extending to levels different from those of other eyes, so that a vertical clearance is formed in warp yarns at the position of the long eyes.

In the embodiment shown in FIGS. 2 and 3,'two groups of wires are mounted on one heald frame, but each group of wires may be mounted on different frames, and they are piled up and fixed so as to place their eyes at different levels.

I claim:

1. A heald for a jet loom having a nozzle for carrying a weft yarn through the shed in a stream of fluid and having at least one additional nozzle on the beat up means for directing a stream of fluid in the direction of the stream of fluid produced by the weft yarn nozzle, said heald comprising a plurality of heald wires each having an eye therein, the eyes in at least one group of adjacent heald Wires which are positioned intermediate the heald wires at the ends of the heald having at least part of the peripheries of the eyes offset in one direction from the eyes in the remainder of the heald wires in the direction of the length of the heald wires, all of the peripheries of the eyes in the group being off-set in the same direction, whereby the warp yarns extending through the eyes in said group of heald wires are lifted out of the plane of the shed to produce an opening in the shed through which the additional nozzle can direct the stream of fluid toward the stream of fluid produced by the weft yarn nozzle.

2. A heald as claimed in claim 1 in which the eyes in said heald wires are substantially round and the eyes in said group of adjacent wires are completely off-set from the eyes in the remainder of heald Wires.

3. A heald as claimed in claim 1 in which the eyes in said remainder of heald wires are substantially round, and the eyes in said group of adjacent heald wires are elongated and have part of the peripheries offset from the eyes in the remainder of the heald wires in one direction of the length of the heald wires and have the remainder of the peripheries offset from the eyes in the remainder of the heald wires in the other direction of the length of the healed wires.

4. A heald as claimed in claim 1 in which there are a plurality of groups of adjacent heald wires, the eyes in all of the heald wires being round and the eyes in the groups being offset from the eyes in the remainder of the heald wires in the same direction.

are respec- 5. In a jet loom having a nozzle for carrying a weft from the eyes in theremainder of heald wires, and there yarn through the shed in a stream of fluid, the combinaare a plurality of at least two additional nozzles, one on tion of abea-t up means having at least one additional nozthe upper part of the beat up means and one on the zle thereon for directing a stream of fluid in the direclower part of the beat up means, the nozzle on the lower tion of the stream of fluid produced by the weft yarn 1102- 5 part of the beat up means being ofiset from the nozzle on zle, and a heald comprising a plurality of heald wires the upper part of the beat up means in the direction of each having van eye thereimtheeyes in at least one group the Weft by a distance ejqualto the length of the group of adjacent heald wires which are positioned intermedi of adjacent wires and being substantially aligned with the ate the heald Wire's at the ends of the heald and adjacent 1 group of adjacent wires in the direction of the length of the end of said additional nozzle having at least part of: 10 the wires. the peripheries of the eyes offset in one direction from l the eyes in the remainder of the heald wires in the direc- RefQI'EFXCeS Cited in the file of this P j tion of the lengthof the heald wirgs, all of the peripheries 7 V UNITED STATES PATENTS h of the eyes in the group 'beingio set in the'same direc v a r a g a tion, whereby the warp yarns extendingthroug'h the eyes 15 2 T i kf:'f' ""f"fff 1917? in said group of heald wires are lifted out of the :plane V FOREIGN PATENTS I of the shed and the additional nozzle can direct the stream 203 3 9 Great BTitain i, e 3 92 of fluid toward the stream of fluid produ'cedabyr the weft 860 979 Great Bri i H F 1.5, 1961': yarn nozzle through the openings in the shed. I 626 594 Canada H a u 29 [19 1 6. The combination as claimed in claim 5 in whic'h't-he 20 r 1,2 1,4 3 7 France A 19611 eyes in said heald wires'are substantially round and the 286,711 Germany Oct. 8;19 l2 eyes in said group of adjacent wires are completely 'ofiset 597,104 7 Germany .1.

UNITED STATES PATENT OFFICE (:ERTIEIEATE 0 EQRR CTIQN Patent No. 3,162,215 i December 22, 1964 I I Hifumi Saito I I It is hereby certified that error appears in the above numbered patent requiring correction and that the said Letters Patent should read as corrected below I In the grant, line 3, for "Fukuoka-ken, Japan," read Fukui-ken, Japan; in the heading to the printed specification, lines 3 and 4, for "Fukuoka-ken, Japan (14-10 Naka suji, Harue-cho, Fukui-ken, Japan)" read 14-10 Nakasuji, Harue-cho,fFuKui-ken, Japan Signedand seal-ed this 10th day 0 f A ugus,t 1965.,

(SEAL) Attest:

ERNEST w. swIDER v EDWARDIJ. "BRENNER Altesting Officer I Commissioner of latents